Demon Sword is the boss of Zone D from Darius Twin. it is shaped after a Swordtip Squid (Uroteuthis edulis).
Appearance
Demon Sword has the look of a mechanical swordtip squid. Its body is long and armored with a sharp blade-like shape, while multiple clawed tentacles extend below. It has glowing yellow eyes and a metallic alien design that emphasizes its menacing weapon-like appearance.
Gameplay
Demon Sword only have two attacks, to flail it's tentacles and fire a five-bullet spread. It's weak spot is in the mouth, but you must first destroy the tentacles.